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Physics

Physics
Which liquid is the most viscous?

Diesel
Milk
Water
Oil

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Physics
The Laser is a beam of radiations which are

Non-coherent and non-monochromatic
Coherent and monochromatic
Non-coherent and monochromatic
Coherent and non-monochromatic

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Physics
Magnetic field lines about a current-carrying wire

Both of these
Extend radially from the wire
Circle the wire in closed loops
None of these

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Physics
Suitable impurities are added to a semiconductor depending on its use. This is done in order to

increase its electrical resistivity
enable it to withstand higher voltages
increase its electrical conductivity
increase its life

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Physics
What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero?

Increases exponentially
None of these
Becomes zero
Remains constant

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Physics
A storm is predicted if atmospheric pressure

Rises suddenly
Falls gradually
Rises gradually
Falls suddenly

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